openinverter forum

Hello All,
I am wondering if this OBC can charge battery from DC ?

Thanks OP for sharing your work!

It looks very similar to the well documented Chevy Volt Gen2 3.6 charger... and its 7.2 brother. (just different aluminum casting and different HV connector).

P.S.Mangelsdorf wrote: ↑Thu Sep 05, 2024 12:53 am I have begun work on reverse engineering the Chevrolet Bolt onboard charger and DC-DC converter.

In fact, I'm a little confused in the part numbering VS HV connectors... With the Chevy Bolt, how do you know if you have the 7.2kW or the 11kW version?

I found that:

24292668 / 24297322 / 24043892 (alt: 24045953, 24285717, 24286409, 24290152, 24293143, 24294943, 24295620) - seems early 7.2kW - has the same Aptiv AC connector found on the Volt Gen2 3.6 or 7.2 chargers. (like what Persanity has posted in pictures) Looks like a Volt charger with different casting.
24045955 / 24063740 - has the new AC connector... (like what P.S.Mangelsdorf has posted in pictures.) Has higher casting fingers on top. Is that 11kW?

Thanks.

pablo_mtl wrote: ↑Thu Oct 23, 2025 3:51 pm It looks very similar to the well documented Chevy Volt Gen2 3.6 charger... and its 7.2 brother. (just different aluminum casting and different HV connector).

Yes, I'm fairly certain that it is exactly the same as the Volt Gen2 7kW charger, with the difference is the upper casing. From my understanding, the Volt Gen2 and Bolt were both on GM's BEV2 architecture.

pablo_mtl wrote: ↑Thu Oct 23, 2025 4:16 pm In fact, I'm a little confused in the part numbering VS HV connectors... With the Chevy Bolt, how do you know if you have the 7.2kW or the 11kW version?

I'm generally confused by GM's part numbering. It's proved difficult to determine which numbers on the part are actually the part number versus denoting something else. I need to dig through what I have to see if I can figure this out.